Snack food



FIG. 1 is a front perspective view of a snack food showing my new design;

FIG. 2 is a front view thereof, the rear view being identical;

FIG. 3 is a right-side view thereof, the left-side view being identical;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The light, unevenly broken lines on the surface of the snack food indicate contour and not surface decoration. 

The ornamental design for a snack food, as shown and described. 